A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: David Pike
Date: 2016 Nov 23, 01:56 -0800
Robin Stuart you wrote: I revisited the Charles Lindbergh’s Great Circle Chart https://www.wdl.org/en/item/6778/ that David Pike had drawn attention to in his post http://fer3.com/arc/m2.aspx/Great-Circle-Sailing-Chart-DavidPike-jan-2016-g34267 Lindbergh’s great circle from New York to Paris is obvious but one can also see the some of the lines that were used in intermediate steps.
I think you meant my post http://fer3.com/arc/m2.aspx/Great-Circle-Sailing-Chart-DavidPike-jan-2016-g34228 . I look forward to reading the remainder of your post later. Daylight and dryness is at a premium for outside work these days. Regarding statute miles. I think it's just what aviators used until after WW2. Spirit of St Louis's airspeed indicator was definitely statute mph https://airandspace.si.edu/collection-objects/ryan-nyp-spirit-st-louis-charles-lindbergh (you might need to fiddle with this to get it to enlarge). Also, for a record breaking attempt the media and sponsors were more likely to understand statute miles. DaveP